Sdl is a project mainly written in C, it's free.
SDL (Simply Directmedia Layer) for marmalade
This is a port of libSDL to Marmalade. Its is very much as work in progress and should not be used in production environments. As such this package is not officiallly supported or endoresed by Marmalade. However, if you would like to help make this package production ready then please contrib to the github project:
http://github.com/marmalade/sdl
This project is based on the Simple Direct Media Layer and is made available under the GNU Lesser General Public License (LGPL) version 2.1 or newer. See http://www.gnu.org/copyleft/lesser.html for more details.